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Dynamic shear properties of porcine periodontal ligament. (a) Complex modulus G*, storage modulus G′, and loss modulus G′′ as a function of frequency. (b) Tangent δ ( = G′′/G′) as a function of frequency. Data were obtained from incisor (white circle) and molar (black circle) periodontal ligaments. Vertical bars indicate 1 SD, reproduced from Tanaka et al. [79], by permission.
